How to insert a Header field?

Não estou conseguindo inserir foto no cabeçalho. Antes ia, agora nao mais.,

If you're referring to this form: http://www.jotformz.com/form/80026687484666

I checked the form and the form has been deleted. I created a new form to test it further and I was able to add a Header field properly. Here's a screen animation of my test:

Please provide a screenshot if you're getting an error. Here's a guide that you can follow: 

How-to-Post-Screenshots-to-Our-Support-Forum

I also cleared your form cache on our server. Please try it again and let us know how it goes.